(19)
(11) EP 3 826 070 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.10.2021 Bulletin 2021/41

(43) Date of publication A2:
26.05.2021 Bulletin 2021/21

(21) Application number: 20208519.7

(22) Date of filing: 19.11.2020
(51) International Patent Classification (IPC): 
H01L 27/32(2006.01)
H01L 51/50(2006.01)
 H01L 51/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H01L 27/326; H01L 2251/558; H01L 27/3218; H01L 27/3216; H01L 51/5012; H01L 27/3246; C23C 14/042; H01L 51/0011
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 21.11.2019 KR 20190150484
29.04.2020 KR 20200052893
14.08.2020 KR 20200102708

(71) Applicant: Samsung Display Co., Ltd.
Yongin-si Gyeonggi-do 17113 (KR)

(72) Inventors:
  • Kim, Seil
    Gyeonggi-do (KR)
  • Baek, Daewon
    Gyeonggi-do (KR)
  • Yi, Sangmin
    Gyeonggi-do (KR)
  • Ko, Jungwoo
    Gyeonggi-do (KR)
  • Ahn, Hongkyun
    Gyeonggi-do (KR)
  • Lee, Jongdae
    Gyeonggi-do (KR)

(74) Representative: Dr. Weitzel & Partner 
Patent- und Rechtsanwälte mbB Friedenstrasse 10
89522 Heidenheim
89522 Heidenheim (DE)

   


(54) DISPLAY DEVICE, MASK ASSEMBLY, METHOD OF MANUFACTURING THE MASK ASSEMBLY, APPARATUS FOR MANUFACTURING THE DISPLAY DEVICE, AND METHOD OF MANUFACTURING THE DISPLAY DEVICE


(57) Provided is a display device, a mask assembly, a method of manufacturing the mask assembly, an apparatus for manufacturing the display device, and a method of manufacturing the display device. The present disclosure includes a mask sheet having pattern holes with at least one of different shapes, different sizes, and different distances between adjacent pattern holes, and a display device is manufactured by using the mask sheet.





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